Analyse the content of an Email Address and check if it is valid or not. Email API can recode the Email Address if any common error or misspelling is found. The API can also check for invalid or fake DNS.

The PeerReach API allows you to give context to the content produced by any Twitter profile.
PeerReach has analysed over a 100 million accounts and can return information like, expertise area's. interests, gender, age and location.
This free version of our API allows you to make 2400 daily calls.

Love music ? This API will search for tracks/ songs in mp3 formate and gets direct download/stream links to you. You can then either stream the track directly or download it. it can search for all indian , english and other local music. download wont cost you anything!!!

Jeannie (Voice Actions) is a virtual assistant with over three million downloads, now also available via API.
The objective of this service is to provide you and your robot with the smartest response to any natural language question, just like Siri.
Jeannie API provides an interface to the standard functions that users demand of modern voice assistants, like chatting, controlling your devices, looking up information, creating messages and much much more.
You can extend this API to your own needs.
It also provides useful metadata such as sentence analysis and entity extraction that goes beyond simple chatting and voice commands.
Several million users have already been in contact with this API: http://www.voice-actions.com/
Examples:
https://weannie.pannous.com/api?input=hi&login=test-user
https://ask.pannous.com/?input=hi
Complete documentation:
https://docs.google.com/document/d/1dVG_B5Sc2x-fi1pN6iJJjfF1bJY6KEFzUqjOb8NsntI/edit

Comprehensive SMS messaging functions.
Direct UK connections, set the sender ID and send texts up to 612 characters. Send SMS to the UK and Europe.
Functions include: Send SMS, Receive SMS, Schedule SMS, Delivery Reporting, Branch Level Identification.
You can also control your Text Marketer account programmatically, for example:
Inject mobile numbers direct into your account,
create new sub accounts and move credits between them
and create new groups. Used by well know brands through to start ups, low cost and reliability is our strength.
See read me to give it a try.

Words API lets you retrieve information about English words, including definitions, synonyms, rhymes, pronunciation, syllables, and frequency of usage. It also can tell you about relationships between words, for instance that "math" has categories like "algebra" and "geometry", or that a "finger" is part of a "hand".